LAKE FOREST ACUTE CARE
NPI 1215379524
Clinic/Center - Urgent Care in Lake Forest, IL
About Lake Forest Acute Care NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAKE FOREST ACUTE CARE (NPI 1215379524) is a healthcare organization registered as an urgent care in Lake Forest, Illinois and active in the NPI registry since July 2013. The organization holds a CLIA Waiver certificate valid through March 24, 2027 and lists Mark Edward Mass, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Lake Forest Acute Care is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Lake Forest Acute Care, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (6)
Chicago, IL 60634
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 14D2056249
Lake Forest Acute Care · Lake Forest, ILFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mass Medical, S.C.'s NPI number?
The NPI number for Mass Medical, S.C. is 1215379524. It was assigned to this organization in the NPPES registry on July 28, 2013. The provider is doing business as Lake Forest Acute Care.
Where is Mass Medical, S.C. located?
Mass Medical, S.C. is located at 1025 W Everett Rd Suite 101, Lake Forest, IL 60045. The listed phone number is (847) 234-7950.
What is Mass Medical, S.C.'s specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Urgent Care, with taxonomy code 261QU0200X.
Is Mass Medical, S.C. enrolled in Medicare?
Yes. Mass Medical, S.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mass Medical, S.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Emergency Medicine, reassign their Medicare billing to Mass Medical, S.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Mass Medical, S.C. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 14D2056249) is associated with this NPI, valid through March 24, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Mass Medical, S.C. was last updated on July 28, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Lake Forest Acute Care · NPI 1215379524
Urgent Care organization in Lake Forest, Illinois. Organization record, active in the CMS NPPES registry since July 28, 2013.
## Identity
- **NPI:** 1215379524 (Entity type: Organization)
- **Enumerated:** July 28, 2013
- **Primary specialty:** Clinic/Center - Urgent Care · taxonomy 261QU0200X
- **Legal business name:** Mass Medical, S.c.
- **Organization subpart:** No
- **Authorized official:** Mark Mass, PRESIDENT
## Practice location
- **Address:** 1025 W EVERETT RD, SUITE 101, Lake Forest, IL 60045-2697
- **Phone:** (847) 234-7950 · **Fax:** (847) 234-7940
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians (Emergency Medicine) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 28, 2013
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1215379524) · Data from the CMS NPPES public registry.